1 /* bnx2x_dcb.c: Broadcom Everest network driver.
3 * Copyright 2009-2011 Broadcom Corporation
5 * Unless you and Broadcom execute a separate written software license
6 * agreement governing use of this software, this software is licensed to you
7 * under the terms of the GNU General Public License version 2, available
8 * at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL").
10 * Notwithstanding the above, under no circumstances may you combine this
11 * software in any way with any other Broadcom software provided under a
12 * license other than the GPL, without Broadcom's express prior written
15 * Maintained by: Eilon Greenstein <eilong@broadcom.com>
16 * Written by: Dmitry Kravkov
20 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
22 #include <linux/netdevice.h>
23 #include <linux/types.h>
24 #include <linux/errno.h>
25 #include <linux/rtnetlink.h>
26 #include <net/dcbnl.h>
29 #include "bnx2x_cmn.h"
30 #include "bnx2x_dcb.h"
32 /* forward declarations of dcbx related functions */
33 static int bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp);
34 static void bnx2x_pfc_set_pfc(struct bnx2x *bp);
35 static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp);
36 static int bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp);
37 static void bnx2x_dcbx_get_ets_pri_pg_tbl(struct bnx2x *bp,
38 u32 *set_configuration_ets_pg,
40 static void bnx2x_dcbx_get_num_pg_traf_type(struct bnx2x *bp,
41 u32 *pg_pri_orginal_spread,
42 struct pg_help_data *help_data);
43 static void bnx2x_dcbx_fill_cos_params(struct bnx2x *bp,
44 struct pg_help_data *help_data,
45 struct dcbx_ets_feature *ets,
46 u32 *pg_pri_orginal_spread);
47 static void bnx2x_dcbx_separate_pauseable_from_non(struct bnx2x *bp,
48 struct cos_help_data *cos_data,
49 u32 *pg_pri_orginal_spread,
50 struct dcbx_ets_feature *ets);
51 static void bnx2x_dcbx_fw_struct(struct bnx2x *bp,
52 struct bnx2x_func_tx_start_params*);
54 /* helpers: read/write len bytes from addr into buff by REG_RD/REG_WR */
55 static void bnx2x_read_data(struct bnx2x *bp, u32 *buff,
59 for (i = 0; i < len; i += 4, buff++)
60 *buff = REG_RD(bp, addr + i);
63 static void bnx2x_write_data(struct bnx2x *bp, u32 *buff,
67 for (i = 0; i < len; i += 4, buff++)
68 REG_WR(bp, addr + i, *buff);
71 static void bnx2x_pfc_set(struct bnx2x *bp)
73 struct bnx2x_nig_brb_pfc_port_params pfc_params = {0};
77 pfc_params.num_of_rx_cos_priority_mask =
78 bp->dcbx_port_params.ets.num_of_cos;
80 /* Tx COS configuration */
81 for (i = 0; i < bp->dcbx_port_params.ets.num_of_cos; i++)
83 * We configure only the pauseable bits (non pauseable aren't
84 * configured at all) it's done to avoid false pauses from
87 pfc_params.rx_cos_priority_mask[i] =
88 bp->dcbx_port_params.ets.cos_params[i].pri_bitmask
89 & DCBX_PFC_PRI_PAUSE_MASK(bp);
92 * Rx COS configuration
93 * Changing PFC RX configuration .
94 * In RX COS0 will always be configured to lossy and COS1 to lossless
96 for (i = 0 ; i < MAX_PFC_PRIORITIES ; i++) {
99 if (pri_bit & DCBX_PFC_PRI_PAUSE_MASK(bp))
103 pfc_params.pkt_priority_to_cos = val;
106 pfc_params.llfc_low_priority_classes = 0;
108 pfc_params.llfc_high_priority_classes = DCBX_PFC_PRI_PAUSE_MASK(bp);
110 /* BRB configuration */
111 pfc_params.cos0_pauseable = false;
112 pfc_params.cos1_pauseable = true;
114 bnx2x_acquire_phy_lock(bp);
115 bp->link_params.feature_config_flags |= FEATURE_CONFIG_PFC_ENABLED;
116 bnx2x_update_pfc(&bp->link_params, &bp->link_vars, &pfc_params);
117 bnx2x_release_phy_lock(bp);
120 static void bnx2x_pfc_clear(struct bnx2x *bp)
122 struct bnx2x_nig_brb_pfc_port_params nig_params = {0};
123 nig_params.pause_enable = 1;
125 if (bp->flags & SAFC_TX_FLAG) {
126 u32 high = 0, low = 0;
129 for (i = 0; i < BNX2X_MAX_PRIORITY; i++) {
130 if (bp->pri_map[i] == 1)
132 if (bp->pri_map[i] == 0)
136 nig_params.llfc_low_priority_classes = high;
137 nig_params.llfc_low_priority_classes = low;
139 nig_params.pause_enable = 0;
140 nig_params.llfc_enable = 1;
141 nig_params.llfc_out_en = 1;
143 #endif /* BNX2X_SAFC */
144 bnx2x_acquire_phy_lock(bp);
145 bp->link_params.feature_config_flags &= ~FEATURE_CONFIG_PFC_ENABLED;
146 bnx2x_update_pfc(&bp->link_params, &bp->link_vars, &nig_params);
147 bnx2x_release_phy_lock(bp);
150 static void bnx2x_dump_dcbx_drv_param(struct bnx2x *bp,
151 struct dcbx_features *features,
155 DP(NETIF_MSG_LINK, "local_mib.error %x\n", error);
159 "local_mib.features.ets.enabled %x\n", features->ets.enabled);
160 for (i = 0; i < DCBX_MAX_NUM_PG_BW_ENTRIES; i++)
162 "local_mib.features.ets.pg_bw_tbl[%d] %d\n", i,
163 DCBX_PG_BW_GET(features->ets.pg_bw_tbl, i));
164 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++)
166 "local_mib.features.ets.pri_pg_tbl[%d] %d\n", i,
167 DCBX_PRI_PG_GET(features->ets.pri_pg_tbl, i));
170 DP(NETIF_MSG_LINK, "dcbx_features.pfc.pri_en_bitmap %x\n",
171 features->pfc.pri_en_bitmap);
172 DP(NETIF_MSG_LINK, "dcbx_features.pfc.pfc_caps %x\n",
173 features->pfc.pfc_caps);
174 DP(NETIF_MSG_LINK, "dcbx_features.pfc.enabled %x\n",
175 features->pfc.enabled);
177 DP(NETIF_MSG_LINK, "dcbx_features.app.default_pri %x\n",
178 features->app.default_pri);
179 DP(NETIF_MSG_LINK, "dcbx_features.app.tc_supported %x\n",
180 features->app.tc_supported);
181 DP(NETIF_MSG_LINK, "dcbx_features.app.enabled %x\n",
182 features->app.enabled);
183 for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
185 "dcbx_features.app.app_pri_tbl[%x].app_id %x\n",
186 i, features->app.app_pri_tbl[i].app_id);
188 "dcbx_features.app.app_pri_tbl[%x].pri_bitmap %x\n",
189 i, features->app.app_pri_tbl[i].pri_bitmap);
191 "dcbx_features.app.app_pri_tbl[%x].appBitfield %x\n",
192 i, features->app.app_pri_tbl[i].appBitfield);
196 static void bnx2x_dcbx_get_ap_priority(struct bnx2x *bp,
200 u32 pri = MAX_PFC_PRIORITIES;
201 u32 index = MAX_PFC_PRIORITIES - 1;
203 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
205 /* Choose the highest priority */
206 while ((MAX_PFC_PRIORITIES == pri) && (0 != index)) {
207 pri_mask = 1 << index;
208 if (GET_FLAGS(pri_bitmap, pri_mask))
213 if (pri < MAX_PFC_PRIORITIES)
214 ttp[llfc_traf_type] = max_t(u32, ttp[llfc_traf_type], pri);
217 static void bnx2x_dcbx_get_ap_feature(struct bnx2x *bp,
218 struct dcbx_app_priority_feature *app,
221 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
223 if (GET_FLAGS(error, DCBX_LOCAL_APP_ERROR))
224 DP(NETIF_MSG_LINK, "DCBX_LOCAL_APP_ERROR\n");
226 if (GET_FLAGS(error, DCBX_LOCAL_APP_MISMATCH))
227 DP(NETIF_MSG_LINK, "DCBX_LOCAL_APP_MISMATCH\n");
230 !GET_FLAGS(error, DCBX_LOCAL_APP_ERROR | DCBX_LOCAL_APP_MISMATCH)) {
232 bp->dcbx_port_params.app.enabled = true;
234 for (index = 0 ; index < LLFC_DRIVER_TRAFFIC_TYPE_MAX; index++)
237 if (app->default_pri < MAX_PFC_PRIORITIES)
238 ttp[LLFC_TRAFFIC_TYPE_NW] = app->default_pri;
240 for (index = 0 ; index < DCBX_MAX_APP_PROTOCOL; index++) {
241 struct dcbx_app_priority_entry *entry =
244 if (GET_FLAGS(entry[index].appBitfield,
245 DCBX_APP_SF_ETH_TYPE) &&
246 ETH_TYPE_FCOE == entry[index].app_id)
247 bnx2x_dcbx_get_ap_priority(bp,
248 entry[index].pri_bitmap,
249 LLFC_TRAFFIC_TYPE_FCOE);
251 if (GET_FLAGS(entry[index].appBitfield,
253 TCP_PORT_ISCSI == entry[index].app_id)
254 bnx2x_dcbx_get_ap_priority(bp,
255 entry[index].pri_bitmap,
256 LLFC_TRAFFIC_TYPE_ISCSI);
259 DP(NETIF_MSG_LINK, "DCBX_LOCAL_APP_DISABLED\n");
260 bp->dcbx_port_params.app.enabled = false;
261 for (index = 0 ; index < LLFC_DRIVER_TRAFFIC_TYPE_MAX; index++)
262 ttp[index] = INVALID_TRAFFIC_TYPE_PRIORITY;
266 static void bnx2x_dcbx_get_ets_feature(struct bnx2x *bp,
267 struct dcbx_ets_feature *ets,
270 u32 pg_pri_orginal_spread[DCBX_MAX_NUM_PG_BW_ENTRIES] = {0};
271 struct pg_help_data pg_help_data;
272 struct bnx2x_dcbx_cos_params *cos_params =
273 bp->dcbx_port_params.ets.cos_params;
275 memset(&pg_help_data, 0, sizeof(struct pg_help_data));
278 if (GET_FLAGS(error, DCBX_LOCAL_ETS_ERROR))
279 DP(NETIF_MSG_LINK, "DCBX_LOCAL_ETS_ERROR\n");
282 /* Clean up old settings of ets on COS */
283 for (i = 0; i < ARRAY_SIZE(bp->dcbx_port_params.ets.cos_params) ; i++) {
284 cos_params[i].pauseable = false;
285 cos_params[i].strict = BNX2X_DCBX_STRICT_INVALID;
286 cos_params[i].bw_tbl = DCBX_INVALID_COS_BW;
287 cos_params[i].pri_bitmask = 0;
290 if (bp->dcbx_port_params.app.enabled &&
291 !GET_FLAGS(error, DCBX_LOCAL_ETS_ERROR) &&
293 DP(NETIF_MSG_LINK, "DCBX_LOCAL_ETS_ENABLE\n");
294 bp->dcbx_port_params.ets.enabled = true;
296 bnx2x_dcbx_get_ets_pri_pg_tbl(bp,
297 pg_pri_orginal_spread,
300 bnx2x_dcbx_get_num_pg_traf_type(bp,
301 pg_pri_orginal_spread,
304 bnx2x_dcbx_fill_cos_params(bp, &pg_help_data,
305 ets, pg_pri_orginal_spread);
308 DP(NETIF_MSG_LINK, "DCBX_LOCAL_ETS_DISABLED\n");
309 bp->dcbx_port_params.ets.enabled = false;
310 ets->pri_pg_tbl[0] = 0;
312 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES ; i++)
313 DCBX_PG_BW_SET(ets->pg_bw_tbl, i, 1);
317 static void bnx2x_dcbx_get_pfc_feature(struct bnx2x *bp,
318 struct dcbx_pfc_feature *pfc, u32 error)
321 if (GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR))
322 DP(NETIF_MSG_LINK, "DCBX_LOCAL_PFC_ERROR\n");
324 if (bp->dcbx_port_params.app.enabled &&
325 !GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR | DCBX_LOCAL_PFC_MISMATCH) &&
327 bp->dcbx_port_params.pfc.enabled = true;
328 bp->dcbx_port_params.pfc.priority_non_pauseable_mask =
329 ~(pfc->pri_en_bitmap);
331 DP(NETIF_MSG_LINK, "DCBX_LOCAL_PFC_DISABLED\n");
332 bp->dcbx_port_params.pfc.enabled = false;
333 bp->dcbx_port_params.pfc.priority_non_pauseable_mask = 0;
337 /* maps unmapped priorities to to the same COS as L2 */
338 static void bnx2x_dcbx_map_nw(struct bnx2x *bp)
341 u32 unmapped = (1 << MAX_PFC_PRIORITIES) - 1; /* all ones */
342 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
343 u32 nw_prio = 1 << ttp[LLFC_TRAFFIC_TYPE_NW];
344 struct bnx2x_dcbx_cos_params *cos_params =
345 bp->dcbx_port_params.ets.cos_params;
347 /* get unmapped priorities by clearing mapped bits */
348 for (i = 0; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++)
349 unmapped &= ~(1 << ttp[i]);
351 /* find cos for nw prio and extend it with unmapped */
352 for (i = 0; i < ARRAY_SIZE(bp->dcbx_port_params.ets.cos_params); i++) {
353 if (cos_params[i].pri_bitmask & nw_prio) {
354 /* extend the bitmask with unmapped */
356 "cos %d extended with 0x%08x\n", i, unmapped);
357 cos_params[i].pri_bitmask |= unmapped;
363 static void bnx2x_get_dcbx_drv_param(struct bnx2x *bp,
364 struct dcbx_features *features,
367 bnx2x_dcbx_get_ap_feature(bp, &features->app, error);
369 bnx2x_dcbx_get_pfc_feature(bp, &features->pfc, error);
371 bnx2x_dcbx_get_ets_feature(bp, &features->ets, error);
373 bnx2x_dcbx_map_nw(bp);
376 #define DCBX_LOCAL_MIB_MAX_TRY_READ (100)
377 static int bnx2x_dcbx_read_mib(struct bnx2x *bp,
382 int max_try_read = 0;
383 u32 mib_size, prefix_seq_num, suffix_seq_num;
384 struct lldp_remote_mib *remote_mib ;
385 struct lldp_local_mib *local_mib;
388 switch (read_mib_type) {
389 case DCBX_READ_LOCAL_MIB:
390 mib_size = sizeof(struct lldp_local_mib);
392 case DCBX_READ_REMOTE_MIB:
393 mib_size = sizeof(struct lldp_remote_mib);
399 offset += BP_PORT(bp) * mib_size;
402 bnx2x_read_data(bp, base_mib_addr, offset, mib_size);
406 switch (read_mib_type) {
407 case DCBX_READ_LOCAL_MIB:
408 local_mib = (struct lldp_local_mib *) base_mib_addr;
409 prefix_seq_num = local_mib->prefix_seq_num;
410 suffix_seq_num = local_mib->suffix_seq_num;
412 case DCBX_READ_REMOTE_MIB:
413 remote_mib = (struct lldp_remote_mib *) base_mib_addr;
414 prefix_seq_num = remote_mib->prefix_seq_num;
415 suffix_seq_num = remote_mib->suffix_seq_num;
420 } while ((prefix_seq_num != suffix_seq_num) &&
421 (max_try_read < DCBX_LOCAL_MIB_MAX_TRY_READ));
423 if (max_try_read >= DCBX_LOCAL_MIB_MAX_TRY_READ) {
424 BNX2X_ERR("MIB could not be read\n");
431 static void bnx2x_pfc_set_pfc(struct bnx2x *bp)
433 if (bp->dcbx_port_params.pfc.enabled &&
434 !(bp->dcbx_error & DCBX_REMOTE_MIB_ERROR))
436 * 1. Fills up common PFC structures if required
437 * 2. Configure NIG, MAC and BRB via the elink
444 static int bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp)
446 struct bnx2x_func_state_params func_params = {0};
448 func_params.f_obj = &bp->func_obj;
449 func_params.cmd = BNX2X_F_CMD_TX_STOP;
451 DP(NETIF_MSG_LINK, "STOP TRAFFIC\n");
452 return bnx2x_func_state_change(bp, &func_params);
455 static int bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp)
457 struct bnx2x_func_state_params func_params = {0};
458 struct bnx2x_func_tx_start_params *tx_params =
459 &func_params.params.tx_start;
461 func_params.f_obj = &bp->func_obj;
462 func_params.cmd = BNX2X_F_CMD_TX_START;
464 bnx2x_dcbx_fw_struct(bp, tx_params);
466 DP(NETIF_MSG_LINK, "START TRAFFIC\n");
467 return bnx2x_func_state_change(bp, &func_params);
470 static void bnx2x_dcbx_2cos_limit_update_ets_config(struct bnx2x *bp)
472 struct bnx2x_dcbx_pg_params *ets = &(bp->dcbx_port_params.ets);
475 if (ets->num_of_cos == 0 || ets->num_of_cos > DCBX_COS_MAX_NUM_E2) {
476 BNX2X_ERR("Illegal number of COSes %d\n", ets->num_of_cos);
480 /* valid COS entries */
481 if (ets->num_of_cos == 1) /* no ETS */
485 if (((BNX2X_DCBX_STRICT_INVALID == ets->cos_params[0].strict) &&
486 (DCBX_INVALID_COS_BW == ets->cos_params[0].bw_tbl)) ||
487 ((BNX2X_DCBX_STRICT_INVALID == ets->cos_params[1].strict) &&
488 (DCBX_INVALID_COS_BW == ets->cos_params[1].bw_tbl))) {
489 BNX2X_ERR("all COS should have at least bw_limit or strict"
490 "ets->cos_params[0].strict= %x"
491 "ets->cos_params[0].bw_tbl= %x"
492 "ets->cos_params[1].strict= %x"
493 "ets->cos_params[1].bw_tbl= %x",
494 ets->cos_params[0].strict,
495 ets->cos_params[0].bw_tbl,
496 ets->cos_params[1].strict,
497 ets->cos_params[1].bw_tbl);
500 /* If we join a group and there is bw_tbl and strict then bw rules */
501 if ((DCBX_INVALID_COS_BW != ets->cos_params[0].bw_tbl) &&
502 (DCBX_INVALID_COS_BW != ets->cos_params[1].bw_tbl)) {
503 u32 bw_tbl_0 = ets->cos_params[0].bw_tbl;
504 u32 bw_tbl_1 = ets->cos_params[1].bw_tbl;
505 /* Do not allow 0-100 configuration
506 * since PBF does not support it
512 } else if (bw_tbl_1 == 0) {
517 bnx2x_ets_bw_limit(&bp->link_params, bw_tbl_0, bw_tbl_1);
519 if (ets->cos_params[0].strict == BNX2X_DCBX_STRICT_COS_HIGHEST)
520 rc = bnx2x_ets_strict(&bp->link_params, 0);
521 else if (ets->cos_params[1].strict
522 == BNX2X_DCBX_STRICT_COS_HIGHEST)
523 rc = bnx2x_ets_strict(&bp->link_params, 1);
525 BNX2X_ERR("update_ets_params failed\n");
530 * In E3B0 the configuration may have more than 2 COS.
532 void bnx2x_dcbx_update_ets_config(struct bnx2x *bp)
534 struct bnx2x_dcbx_pg_params *ets = &(bp->dcbx_port_params.ets);
535 struct bnx2x_ets_params ets_params = { 0 };
538 ets_params.num_of_cos = ets->num_of_cos;
540 for (i = 0; i < ets->num_of_cos; i++) {
542 if (ets->cos_params[i].strict != BNX2X_DCBX_STRICT_INVALID) {
543 if (ets->cos_params[i].bw_tbl != DCBX_INVALID_COS_BW) {
544 BNX2X_ERR("COS can't be not BW and not SP\n");
548 ets_params.cos[i].state = bnx2x_cos_state_strict;
549 ets_params.cos[i].params.sp_params.pri =
550 ets->cos_params[i].strict;
551 } else { /* COS is BW */
552 if (ets->cos_params[i].bw_tbl == DCBX_INVALID_COS_BW) {
553 BNX2X_ERR("COS can't be not BW and not SP\n");
556 ets_params.cos[i].state = bnx2x_cos_state_bw;
557 ets_params.cos[i].params.bw_params.bw =
558 (u8)ets->cos_params[i].bw_tbl;
562 /* Configure the ETS in HW */
563 if (bnx2x_ets_e3b0_config(&bp->link_params, &bp->link_vars,
565 BNX2X_ERR("bnx2x_ets_e3b0_config failed\n");
566 bnx2x_ets_disabled(&bp->link_params, &bp->link_vars);
570 static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp)
572 bnx2x_ets_disabled(&bp->link_params, &bp->link_vars);
574 if (!bp->dcbx_port_params.ets.enabled ||
575 (bp->dcbx_error & DCBX_REMOTE_MIB_ERROR))
578 if (CHIP_IS_E3B0(bp))
579 bnx2x_dcbx_update_ets_config(bp);
581 bnx2x_dcbx_2cos_limit_update_ets_config(bp);
585 static int bnx2x_dcbx_read_shmem_remote_mib(struct bnx2x *bp)
587 struct lldp_remote_mib remote_mib = {0};
588 u32 dcbx_remote_mib_offset = SHMEM2_RD(bp, dcbx_remote_mib_offset);
591 DP(NETIF_MSG_LINK, "dcbx_remote_mib_offset 0x%x\n",
592 dcbx_remote_mib_offset);
594 if (SHMEM_DCBX_REMOTE_MIB_NONE == dcbx_remote_mib_offset) {
595 BNX2X_ERR("FW doesn't support dcbx_remote_mib_offset\n");
599 rc = bnx2x_dcbx_read_mib(bp, (u32 *)&remote_mib, dcbx_remote_mib_offset,
600 DCBX_READ_REMOTE_MIB);
603 BNX2X_ERR("Faild to read remote mib from FW\n");
607 /* save features and flags */
608 bp->dcbx_remote_feat = remote_mib.features;
609 bp->dcbx_remote_flags = remote_mib.flags;
614 static int bnx2x_dcbx_read_shmem_neg_results(struct bnx2x *bp)
616 struct lldp_local_mib local_mib = {0};
617 u32 dcbx_neg_res_offset = SHMEM2_RD(bp, dcbx_neg_res_offset);
620 DP(NETIF_MSG_LINK, "dcbx_neg_res_offset 0x%x\n", dcbx_neg_res_offset);
622 if (SHMEM_DCBX_NEG_RES_NONE == dcbx_neg_res_offset) {
623 BNX2X_ERR("FW doesn't support dcbx_neg_res_offset\n");
627 rc = bnx2x_dcbx_read_mib(bp, (u32 *)&local_mib, dcbx_neg_res_offset,
628 DCBX_READ_LOCAL_MIB);
631 BNX2X_ERR("Faild to read local mib from FW\n");
635 /* save features and error */
636 bp->dcbx_local_feat = local_mib.features;
637 bp->dcbx_error = local_mib.error;
644 u8 bnx2x_dcbx_dcbnl_app_up(struct dcbx_app_priority_entry *ent)
648 /* Choose the highest priority */
649 for (pri = MAX_PFC_PRIORITIES - 1; pri > 0; pri--)
650 if (ent->pri_bitmap & (1 << pri))
656 u8 bnx2x_dcbx_dcbnl_app_idtype(struct dcbx_app_priority_entry *ent)
658 return ((ent->appBitfield & DCBX_APP_ENTRY_SF_MASK) ==
659 DCBX_APP_SF_PORT) ? DCB_APP_IDTYPE_PORTNUM :
660 DCB_APP_IDTYPE_ETHTYPE;
663 int bnx2x_dcbnl_update_applist(struct bnx2x *bp, bool delall)
667 for (i = 0; i < DCBX_MAX_APP_PROTOCOL && err == 0; i++) {
668 struct dcbx_app_priority_entry *ent =
669 &bp->dcbx_local_feat.app.app_pri_tbl[i];
671 if (ent->appBitfield & DCBX_APP_ENTRY_VALID) {
672 u8 up = bnx2x_dcbx_dcbnl_app_up(ent);
674 /* avoid invalid user-priority */
677 app.selector = bnx2x_dcbx_dcbnl_app_idtype(ent);
678 app.protocol = ent->app_id;
679 app.priority = delall ? 0 : up;
680 err = dcb_setapp(bp->dev, &app);
688 static inline void bnx2x_dcbx_update_tc_mapping(struct bnx2x *bp)
691 for (cos = 0; cos < bp->dcbx_port_params.ets.num_of_cos; cos++) {
692 for (prio = 0; prio < BNX2X_MAX_PRIORITY; prio++) {
693 if (bp->dcbx_port_params.ets.cos_params[cos].pri_bitmask
695 bp->prio_to_cos[prio] = cos;
697 "tx_mapping %d --> %d\n", prio, cos);
702 /* setup tc must be called under rtnl lock, but we can't take it here
703 * as we are handling an attetntion on a work queue which must be
704 * flushed at some rtnl-locked contexts (e.g. if down)
706 if (!test_and_set_bit(BNX2X_SP_RTNL_SETUP_TC, &bp->sp_rtnl_state))
707 schedule_delayed_work(&bp->sp_rtnl_task, 0);
710 void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state)
713 case BNX2X_DCBX_STATE_NEG_RECEIVED:
715 DP(NETIF_MSG_LINK, "BNX2X_DCBX_STATE_NEG_RECEIVED\n");
718 * Delete app tlvs from dcbnl before reading new
719 * negotiation results
721 bnx2x_dcbnl_update_applist(bp, true);
723 /* Read rmeote mib if dcbx is in the FW */
724 if (bnx2x_dcbx_read_shmem_remote_mib(bp))
727 /* Read neg results if dcbx is in the FW */
728 if (bnx2x_dcbx_read_shmem_neg_results(bp))
731 bnx2x_dump_dcbx_drv_param(bp, &bp->dcbx_local_feat,
734 bnx2x_get_dcbx_drv_param(bp, &bp->dcbx_local_feat,
737 /* mark DCBX result for PMF migration */
738 bnx2x_update_drv_flags(bp, DRV_FLAGS_DCB_CONFIGURED, 1);
741 * Add new app tlvs to dcbnl
743 bnx2x_dcbnl_update_applist(bp, false);
746 * reconfigure the netdevice with the results of the new
749 bnx2x_dcbx_update_tc_mapping(bp);
752 * allow other funtions to update their netdevices
756 bnx2x_link_sync_notify(bp);
758 bnx2x_dcbx_stop_hw_tx(bp);
762 case BNX2X_DCBX_STATE_TX_PAUSED:
763 DP(NETIF_MSG_LINK, "BNX2X_DCBX_STATE_TX_PAUSED\n");
764 bnx2x_pfc_set_pfc(bp);
766 bnx2x_dcbx_update_ets_params(bp);
767 bnx2x_dcbx_resume_hw_tx(bp);
770 case BNX2X_DCBX_STATE_TX_RELEASED:
771 DP(NETIF_MSG_LINK, "BNX2X_DCBX_STATE_TX_RELEASED\n");
772 bnx2x_fw_command(bp, DRV_MSG_CODE_DCBX_PMF_DRV_OK, 0);
775 * Send a notification for the new negotiated parameters
777 dcbnl_cee_notify(bp->dev, RTM_GETDCB, DCB_CMD_CEE_GET, 0, 0);
781 BNX2X_ERR("Unknown DCBX_STATE\n");
785 #define LLDP_ADMIN_MIB_OFFSET(bp) (PORT_MAX*sizeof(struct lldp_params) + \
786 BP_PORT(bp)*sizeof(struct lldp_admin_mib))
788 static void bnx2x_dcbx_admin_mib_updated_params(struct bnx2x *bp,
789 u32 dcbx_lldp_params_offset)
791 struct lldp_admin_mib admin_mib;
792 u32 i, other_traf_type = PREDEFINED_APP_IDX_MAX, traf_type = 0;
793 u32 offset = dcbx_lldp_params_offset + LLDP_ADMIN_MIB_OFFSET(bp);
796 struct dcbx_features *af = &admin_mib.features;
797 struct bnx2x_config_dcbx_params *dp = &bp->dcbx_config_params;
799 memset(&admin_mib, 0, sizeof(struct lldp_admin_mib));
801 /* Read the data first */
802 bnx2x_read_data(bp, (u32 *)&admin_mib, offset,
803 sizeof(struct lldp_admin_mib));
805 if (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_ON)
806 SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_DCBX_ENABLED);
808 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_DCBX_ENABLED);
810 if (dp->overwrite_settings == BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE) {
812 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_CEE_VERSION_MASK);
813 admin_mib.ver_cfg_flags |=
814 (dp->admin_dcbx_version << DCBX_CEE_VERSION_SHIFT) &
815 DCBX_CEE_VERSION_MASK;
817 af->ets.enabled = (u8)dp->admin_ets_enable;
819 af->pfc.enabled = (u8)dp->admin_pfc_enable;
821 /* FOR IEEE dp->admin_tc_supported_tx_enable */
822 if (dp->admin_ets_configuration_tx_enable)
823 SET_FLAGS(admin_mib.ver_cfg_flags,
824 DCBX_ETS_CONFIG_TX_ENABLED);
826 RESET_FLAGS(admin_mib.ver_cfg_flags,
827 DCBX_ETS_CONFIG_TX_ENABLED);
828 /* For IEEE admin_ets_recommendation_tx_enable */
829 if (dp->admin_pfc_tx_enable)
830 SET_FLAGS(admin_mib.ver_cfg_flags,
831 DCBX_PFC_CONFIG_TX_ENABLED);
833 RESET_FLAGS(admin_mib.ver_cfg_flags,
834 DCBX_PFC_CONFIG_TX_ENABLED);
836 if (dp->admin_application_priority_tx_enable)
837 SET_FLAGS(admin_mib.ver_cfg_flags,
838 DCBX_APP_CONFIG_TX_ENABLED);
840 RESET_FLAGS(admin_mib.ver_cfg_flags,
841 DCBX_APP_CONFIG_TX_ENABLED);
843 if (dp->admin_ets_willing)
844 SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_ETS_WILLING);
846 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_ETS_WILLING);
847 /* For IEEE admin_ets_reco_valid */
848 if (dp->admin_pfc_willing)
849 SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_PFC_WILLING);
851 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_PFC_WILLING);
853 if (dp->admin_app_priority_willing)
854 SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_APP_WILLING);
856 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_APP_WILLING);
858 for (i = 0 ; i < DCBX_MAX_NUM_PG_BW_ENTRIES; i++) {
859 DCBX_PG_BW_SET(af->ets.pg_bw_tbl, i,
860 (u8)dp->admin_configuration_bw_precentage[i]);
862 DP(NETIF_MSG_LINK, "pg_bw_tbl[%d] = %02x\n",
863 i, DCBX_PG_BW_GET(af->ets.pg_bw_tbl, i));
866 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) {
867 DCBX_PRI_PG_SET(af->ets.pri_pg_tbl, i,
868 (u8)dp->admin_configuration_ets_pg[i]);
870 DP(NETIF_MSG_LINK, "pri_pg_tbl[%d] = %02x\n",
871 i, DCBX_PRI_PG_GET(af->ets.pri_pg_tbl, i));
874 /*For IEEE admin_recommendation_bw_precentage
875 *For IEEE admin_recommendation_ets_pg */
876 af->pfc.pri_en_bitmap = (u8)dp->admin_pfc_bitmap;
877 for (i = 0; i < DCBX_CONFIG_MAX_APP_PROTOCOL; i++) {
878 if (dp->admin_priority_app_table[i].valid) {
879 struct bnx2x_admin_priority_app_table *table =
880 dp->admin_priority_app_table;
881 if ((ETH_TYPE_FCOE == table[i].app_id) &&
882 (TRAFFIC_TYPE_ETH == table[i].traffic_type))
883 traf_type = FCOE_APP_IDX;
884 else if ((TCP_PORT_ISCSI == table[i].app_id) &&
885 (TRAFFIC_TYPE_PORT == table[i].traffic_type))
886 traf_type = ISCSI_APP_IDX;
888 traf_type = other_traf_type++;
890 af->app.app_pri_tbl[traf_type].app_id =
893 af->app.app_pri_tbl[traf_type].pri_bitmap =
894 (u8)(1 << table[i].priority);
896 af->app.app_pri_tbl[traf_type].appBitfield =
897 (DCBX_APP_ENTRY_VALID);
899 af->app.app_pri_tbl[traf_type].appBitfield |=
900 (TRAFFIC_TYPE_ETH == table[i].traffic_type) ?
901 DCBX_APP_SF_ETH_TYPE : DCBX_APP_SF_PORT;
905 af->app.default_pri = (u8)dp->admin_default_priority;
909 /* Write the data. */
910 bnx2x_write_data(bp, (u32 *)&admin_mib, offset,
911 sizeof(struct lldp_admin_mib));
915 void bnx2x_dcbx_set_state(struct bnx2x *bp, bool dcb_on, u32 dcbx_enabled)
917 if (!CHIP_IS_E1x(bp)) {
918 bp->dcb_state = dcb_on;
919 bp->dcbx_enabled = dcbx_enabled;
921 bp->dcb_state = false;
922 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_INVALID;
924 DP(NETIF_MSG_LINK, "DCB state [%s:%s]\n",
925 dcb_on ? "ON" : "OFF",
926 dcbx_enabled == BNX2X_DCBX_ENABLED_OFF ? "user-mode" :
927 dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_OFF ? "on-chip static" :
928 dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_ON ?
929 "on-chip with negotiation" : "invalid");
932 void bnx2x_dcbx_init_params(struct bnx2x *bp)
934 bp->dcbx_config_params.admin_dcbx_version = 0x0; /* 0 - CEE; 1 - IEEE */
935 bp->dcbx_config_params.admin_ets_willing = 1;
936 bp->dcbx_config_params.admin_pfc_willing = 1;
937 bp->dcbx_config_params.overwrite_settings = 1;
938 bp->dcbx_config_params.admin_ets_enable = 1;
939 bp->dcbx_config_params.admin_pfc_enable = 1;
940 bp->dcbx_config_params.admin_tc_supported_tx_enable = 1;
941 bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
942 bp->dcbx_config_params.admin_pfc_tx_enable = 1;
943 bp->dcbx_config_params.admin_application_priority_tx_enable = 1;
944 bp->dcbx_config_params.admin_ets_reco_valid = 1;
945 bp->dcbx_config_params.admin_app_priority_willing = 1;
946 bp->dcbx_config_params.admin_configuration_bw_precentage[0] = 00;
947 bp->dcbx_config_params.admin_configuration_bw_precentage[1] = 50;
948 bp->dcbx_config_params.admin_configuration_bw_precentage[2] = 50;
949 bp->dcbx_config_params.admin_configuration_bw_precentage[3] = 0;
950 bp->dcbx_config_params.admin_configuration_bw_precentage[4] = 0;
951 bp->dcbx_config_params.admin_configuration_bw_precentage[5] = 0;
952 bp->dcbx_config_params.admin_configuration_bw_precentage[6] = 0;
953 bp->dcbx_config_params.admin_configuration_bw_precentage[7] = 0;
954 bp->dcbx_config_params.admin_configuration_ets_pg[0] = 1;
955 bp->dcbx_config_params.admin_configuration_ets_pg[1] = 0;
956 bp->dcbx_config_params.admin_configuration_ets_pg[2] = 0;
957 bp->dcbx_config_params.admin_configuration_ets_pg[3] = 2;
958 bp->dcbx_config_params.admin_configuration_ets_pg[4] = 0;
959 bp->dcbx_config_params.admin_configuration_ets_pg[5] = 0;
960 bp->dcbx_config_params.admin_configuration_ets_pg[6] = 0;
961 bp->dcbx_config_params.admin_configuration_ets_pg[7] = 0;
962 bp->dcbx_config_params.admin_recommendation_bw_precentage[0] = 0;
963 bp->dcbx_config_params.admin_recommendation_bw_precentage[1] = 1;
964 bp->dcbx_config_params.admin_recommendation_bw_precentage[2] = 2;
965 bp->dcbx_config_params.admin_recommendation_bw_precentage[3] = 0;
966 bp->dcbx_config_params.admin_recommendation_bw_precentage[4] = 7;
967 bp->dcbx_config_params.admin_recommendation_bw_precentage[5] = 5;
968 bp->dcbx_config_params.admin_recommendation_bw_precentage[6] = 6;
969 bp->dcbx_config_params.admin_recommendation_bw_precentage[7] = 7;
970 bp->dcbx_config_params.admin_recommendation_ets_pg[0] = 0;
971 bp->dcbx_config_params.admin_recommendation_ets_pg[1] = 1;
972 bp->dcbx_config_params.admin_recommendation_ets_pg[2] = 2;
973 bp->dcbx_config_params.admin_recommendation_ets_pg[3] = 3;
974 bp->dcbx_config_params.admin_recommendation_ets_pg[4] = 4;
975 bp->dcbx_config_params.admin_recommendation_ets_pg[5] = 5;
976 bp->dcbx_config_params.admin_recommendation_ets_pg[6] = 6;
977 bp->dcbx_config_params.admin_recommendation_ets_pg[7] = 7;
978 bp->dcbx_config_params.admin_pfc_bitmap = 0x8; /* FCoE(3) enable */
979 bp->dcbx_config_params.admin_priority_app_table[0].valid = 1;
980 bp->dcbx_config_params.admin_priority_app_table[1].valid = 1;
981 bp->dcbx_config_params.admin_priority_app_table[2].valid = 0;
982 bp->dcbx_config_params.admin_priority_app_table[3].valid = 0;
983 bp->dcbx_config_params.admin_priority_app_table[0].priority = 3;
984 bp->dcbx_config_params.admin_priority_app_table[1].priority = 0;
985 bp->dcbx_config_params.admin_priority_app_table[2].priority = 0;
986 bp->dcbx_config_params.admin_priority_app_table[3].priority = 0;
987 bp->dcbx_config_params.admin_priority_app_table[0].traffic_type = 0;
988 bp->dcbx_config_params.admin_priority_app_table[1].traffic_type = 1;
989 bp->dcbx_config_params.admin_priority_app_table[2].traffic_type = 0;
990 bp->dcbx_config_params.admin_priority_app_table[3].traffic_type = 0;
991 bp->dcbx_config_params.admin_priority_app_table[0].app_id = 0x8906;
992 bp->dcbx_config_params.admin_priority_app_table[1].app_id = 3260;
993 bp->dcbx_config_params.admin_priority_app_table[2].app_id = 0;
994 bp->dcbx_config_params.admin_priority_app_table[3].app_id = 0;
995 bp->dcbx_config_params.admin_default_priority =
996 bp->dcbx_config_params.admin_priority_app_table[1].priority;
999 void bnx2x_dcbx_init(struct bnx2x *bp)
1001 u32 dcbx_lldp_params_offset = SHMEM_LLDP_DCBX_PARAMS_NONE;
1003 if (bp->dcbx_enabled <= 0)
1007 * chip of good for dcbx version,
1009 * the function is pmf
1010 * shmem2 contains DCBX support fields
1012 DP(NETIF_MSG_LINK, "dcb_state %d bp->port.pmf %d\n",
1013 bp->dcb_state, bp->port.pmf);
1015 if (bp->dcb_state == BNX2X_DCB_STATE_ON && bp->port.pmf &&
1016 SHMEM2_HAS(bp, dcbx_lldp_params_offset)) {
1017 dcbx_lldp_params_offset =
1018 SHMEM2_RD(bp, dcbx_lldp_params_offset);
1020 DP(NETIF_MSG_LINK, "dcbx_lldp_params_offset 0x%x\n",
1021 dcbx_lldp_params_offset);
1023 bnx2x_update_drv_flags(bp, DRV_FLAGS_DCB_CONFIGURED, 0);
1025 if (SHMEM_LLDP_DCBX_PARAMS_NONE != dcbx_lldp_params_offset) {
1026 bnx2x_dcbx_admin_mib_updated_params(bp,
1027 dcbx_lldp_params_offset);
1029 /* Let HW start negotiation */
1030 bnx2x_fw_command(bp,
1031 DRV_MSG_CODE_DCBX_ADMIN_PMF_MSG, 0);
1036 bnx2x_dcbx_print_cos_params(struct bnx2x *bp,
1037 struct bnx2x_func_tx_start_params *pfc_fw_cfg)
1043 "pfc_fw_cfg->dcb_version %x\n", pfc_fw_cfg->dcb_version);
1045 "pdev->params.dcbx_port_params.pfc."
1046 "priority_non_pauseable_mask %x\n",
1047 bp->dcbx_port_params.pfc.priority_non_pauseable_mask);
1049 for (cos = 0 ; cos < bp->dcbx_port_params.ets.num_of_cos ; cos++) {
1050 DP(NETIF_MSG_LINK, "pdev->params.dcbx_port_params.ets."
1051 "cos_params[%d].pri_bitmask %x\n", cos,
1052 bp->dcbx_port_params.ets.cos_params[cos].pri_bitmask);
1054 DP(NETIF_MSG_LINK, "pdev->params.dcbx_port_params.ets."
1055 "cos_params[%d].bw_tbl %x\n", cos,
1056 bp->dcbx_port_params.ets.cos_params[cos].bw_tbl);
1058 DP(NETIF_MSG_LINK, "pdev->params.dcbx_port_params.ets."
1059 "cos_params[%d].strict %x\n", cos,
1060 bp->dcbx_port_params.ets.cos_params[cos].strict);
1062 DP(NETIF_MSG_LINK, "pdev->params.dcbx_port_params.ets."
1063 "cos_params[%d].pauseable %x\n", cos,
1064 bp->dcbx_port_params.ets.cos_params[cos].pauseable);
1067 for (pri = 0; pri < LLFC_DRIVER_TRAFFIC_TYPE_MAX; pri++) {
1069 "pfc_fw_cfg->traffic_type_to_priority_cos[%d]."
1070 "priority %x\n", pri,
1071 pfc_fw_cfg->traffic_type_to_priority_cos[pri].priority);
1074 "pfc_fw_cfg->traffic_type_to_priority_cos[%d].cos %x\n",
1075 pri, pfc_fw_cfg->traffic_type_to_priority_cos[pri].cos);
1079 /* fills help_data according to pg_info */
1080 static void bnx2x_dcbx_get_num_pg_traf_type(struct bnx2x *bp,
1081 u32 *pg_pri_orginal_spread,
1082 struct pg_help_data *help_data)
1084 bool pg_found = false;
1085 u32 i, traf_type, add_traf_type, add_pg;
1086 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
1087 struct pg_entry_help_data *data = help_data->data; /*shotcut*/
1089 /* Set to invalid */
1090 for (i = 0; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++)
1091 data[i].pg = DCBX_ILLEGAL_PG;
1093 for (add_traf_type = 0;
1094 add_traf_type < LLFC_DRIVER_TRAFFIC_TYPE_MAX; add_traf_type++) {
1096 if (ttp[add_traf_type] < MAX_PFC_PRIORITIES) {
1097 add_pg = (u8)pg_pri_orginal_spread[ttp[add_traf_type]];
1099 traf_type < LLFC_DRIVER_TRAFFIC_TYPE_MAX;
1101 if (data[traf_type].pg == add_pg) {
1102 if (!(data[traf_type].pg_priority &
1103 (1 << ttp[add_traf_type])))
1106 data[traf_type].pg_priority |=
1107 (1 << ttp[add_traf_type]);
1112 if (false == pg_found) {
1113 data[help_data->num_of_pg].pg = add_pg;
1114 data[help_data->num_of_pg].pg_priority =
1115 (1 << ttp[add_traf_type]);
1116 data[help_data->num_of_pg].num_of_dif_pri = 1;
1117 help_data->num_of_pg++;
1121 "add_traf_type %d pg_found %s num_of_pg %d\n",
1122 add_traf_type, (false == pg_found) ? "NO" : "YES",
1123 help_data->num_of_pg);
1127 static void bnx2x_dcbx_ets_disabled_entry_data(struct bnx2x *bp,
1128 struct cos_help_data *cos_data,
1131 /* Only one priority than only one COS */
1132 cos_data->data[0].pausable =
1133 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1134 cos_data->data[0].pri_join_mask = pri_join_mask;
1135 cos_data->data[0].cos_bw = 100;
1136 cos_data->num_of_cos = 1;
1139 static inline void bnx2x_dcbx_add_to_cos_bw(struct bnx2x *bp,
1140 struct cos_entry_help_data *data,
1143 if (data->cos_bw == DCBX_INVALID_COS_BW)
1144 data->cos_bw = pg_bw;
1146 data->cos_bw += pg_bw;
1149 static void bnx2x_dcbx_separate_pauseable_from_non(struct bnx2x *bp,
1150 struct cos_help_data *cos_data,
1151 u32 *pg_pri_orginal_spread,
1152 struct dcbx_ets_feature *ets)
1158 u8 num_of_pri = LLFC_DRIVER_TRAFFIC_TYPE_MAX;
1160 cos_data->data[0].pausable = true;
1161 cos_data->data[1].pausable = false;
1162 cos_data->data[0].pri_join_mask = cos_data->data[1].pri_join_mask = 0;
1164 for (i = 0 ; i < num_of_pri ; i++) {
1165 pri_tested = 1 << bp->dcbx_port_params.
1166 app.traffic_type_priority[i];
1168 if (pri_tested & DCBX_PFC_PRI_NON_PAUSE_MASK(bp)) {
1169 cos_data->data[1].pri_join_mask |= pri_tested;
1172 cos_data->data[0].pri_join_mask |= pri_tested;
1175 pg_entry = (u8)pg_pri_orginal_spread[bp->dcbx_port_params.
1176 app.traffic_type_priority[i]];
1177 /* There can be only one strict pg */
1178 if (pg_entry < DCBX_MAX_NUM_PG_BW_ENTRIES)
1179 bnx2x_dcbx_add_to_cos_bw(bp, &cos_data->data[entry],
1180 DCBX_PG_BW_GET(ets->pg_bw_tbl, pg_entry));
1182 /* If we join a group and one is strict
1183 * than the bw rulls */
1184 cos_data->data[entry].strict =
1185 BNX2X_DCBX_STRICT_COS_HIGHEST;
1187 if ((0 == cos_data->data[0].pri_join_mask) &&
1188 (0 == cos_data->data[1].pri_join_mask))
1189 BNX2X_ERR("dcbx error: Both groups must have priorities\n");
1194 #define POWER_OF_2(x) ((0 != x) && (0 == (x & (x-1))))
1197 static void bnx2x_dcbx_2cos_limit_cee_single_pg_to_cos_params(struct bnx2x *bp,
1198 struct pg_help_data *pg_help_data,
1199 struct cos_help_data *cos_data,
1205 u32 pri_mask_without_pri = 0;
1206 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
1208 if (num_of_dif_pri == 1) {
1209 bnx2x_dcbx_ets_disabled_entry_data(bp, cos_data, pri_join_mask);
1212 /* single priority group */
1213 if (pg_help_data->data[0].pg < DCBX_MAX_NUM_PG_BW_ENTRIES) {
1214 /* If there are both pauseable and non-pauseable priorities,
1215 * the pauseable priorities go to the first queue and
1216 * the non-pauseable priorities go to the second queue.
1218 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
1220 cos_data->data[0].pausable = true;
1222 cos_data->data[1].pausable = false;
1224 if (2 == num_of_dif_pri) {
1225 cos_data->data[0].cos_bw = 50;
1226 cos_data->data[1].cos_bw = 50;
1229 if (3 == num_of_dif_pri) {
1230 if (POWER_OF_2(DCBX_PFC_PRI_GET_PAUSE(bp,
1232 cos_data->data[0].cos_bw = 33;
1233 cos_data->data[1].cos_bw = 67;
1235 cos_data->data[0].cos_bw = 67;
1236 cos_data->data[1].cos_bw = 33;
1240 } else if (IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask)) {
1241 /* If there are only pauseable priorities,
1242 * then one/two priorities go to the first queue
1243 * and one priority goes to the second queue.
1245 if (2 == num_of_dif_pri) {
1246 cos_data->data[0].cos_bw = 50;
1247 cos_data->data[1].cos_bw = 50;
1249 cos_data->data[0].cos_bw = 67;
1250 cos_data->data[1].cos_bw = 33;
1252 cos_data->data[1].pausable = true;
1253 cos_data->data[0].pausable = true;
1254 /* All priorities except FCOE */
1255 cos_data->data[0].pri_join_mask = (pri_join_mask &
1256 ((u8)~(1 << ttp[LLFC_TRAFFIC_TYPE_FCOE])));
1257 /* Only FCOE priority.*/
1258 cos_data->data[1].pri_join_mask =
1259 (1 << ttp[LLFC_TRAFFIC_TYPE_FCOE]);
1261 /* If there are only non-pauseable priorities,
1262 * they will all go to the same queue.
1264 bnx2x_dcbx_ets_disabled_entry_data(bp,
1265 cos_data, pri_join_mask);
1267 /* priority group which is not BW limited (PG#15):*/
1268 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
1269 /* If there are both pauseable and non-pauseable
1270 * priorities, the pauseable priorities go to the first
1271 * queue and the non-pauseable priorities
1272 * go to the second queue.
1274 if (DCBX_PFC_PRI_GET_PAUSE(bp, pri_join_mask) >
1275 DCBX_PFC_PRI_GET_NON_PAUSE(bp, pri_join_mask)) {
1276 cos_data->data[0].strict =
1277 BNX2X_DCBX_STRICT_COS_HIGHEST;
1278 cos_data->data[1].strict =
1279 BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
1280 BNX2X_DCBX_STRICT_COS_HIGHEST);
1282 cos_data->data[0].strict =
1283 BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
1284 BNX2X_DCBX_STRICT_COS_HIGHEST);
1285 cos_data->data[1].strict =
1286 BNX2X_DCBX_STRICT_COS_HIGHEST;
1289 cos_data->data[0].pausable = true;
1290 /* Non pause-able.*/
1291 cos_data->data[1].pausable = false;
1293 /* If there are only pauseable priorities or
1294 * only non-pauseable,* the lower priorities go
1295 * to the first queue and the higherpriorities go
1296 * to the second queue.
1298 cos_data->data[0].pausable =
1299 cos_data->data[1].pausable =
1300 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1302 for (i = 0 ; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++) {
1303 pri_tested = 1 << bp->dcbx_port_params.
1304 app.traffic_type_priority[i];
1305 /* Remove priority tested */
1306 pri_mask_without_pri =
1307 (pri_join_mask & ((u8)(~pri_tested)));
1308 if (pri_mask_without_pri < pri_tested)
1312 if (i == LLFC_DRIVER_TRAFFIC_TYPE_MAX)
1313 BNX2X_ERR("Invalid value for pri_join_mask -"
1314 " could not find a priority\n");
1316 cos_data->data[0].pri_join_mask = pri_mask_without_pri;
1317 cos_data->data[1].pri_join_mask = pri_tested;
1318 /* Both queues are strict priority,
1319 * and that with the highest priority
1320 * gets the highest strict priority in the arbiter.
1322 cos_data->data[0].strict =
1323 BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
1324 BNX2X_DCBX_STRICT_COS_HIGHEST);
1325 cos_data->data[1].strict =
1326 BNX2X_DCBX_STRICT_COS_HIGHEST;
1331 static void bnx2x_dcbx_2cos_limit_cee_two_pg_to_cos_params(
1333 struct pg_help_data *pg_help_data,
1334 struct dcbx_ets_feature *ets,
1335 struct cos_help_data *cos_data,
1336 u32 *pg_pri_orginal_spread,
1341 u8 pg[DCBX_COS_MAX_NUM_E2] = { 0 };
1343 /* If there are both pauseable and non-pauseable priorities,
1344 * the pauseable priorities go to the first queue and
1345 * the non-pauseable priorities go to the second queue.
1347 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
1348 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp,
1349 pg_help_data->data[0].pg_priority) ||
1350 IS_DCBX_PFC_PRI_MIX_PAUSE(bp,
1351 pg_help_data->data[1].pg_priority)) {
1352 /* If one PG contains both pauseable and
1353 * non-pauseable priorities then ETS is disabled.
1355 bnx2x_dcbx_separate_pauseable_from_non(bp, cos_data,
1356 pg_pri_orginal_spread, ets);
1357 bp->dcbx_port_params.ets.enabled = false;
1362 cos_data->data[0].pausable = true;
1363 /* Non pauseable. */
1364 cos_data->data[1].pausable = false;
1365 if (IS_DCBX_PFC_PRI_ONLY_PAUSE(bp,
1366 pg_help_data->data[0].pg_priority)) {
1367 /* 0 is pauseable */
1368 cos_data->data[0].pri_join_mask =
1369 pg_help_data->data[0].pg_priority;
1370 pg[0] = pg_help_data->data[0].pg;
1371 cos_data->data[1].pri_join_mask =
1372 pg_help_data->data[1].pg_priority;
1373 pg[1] = pg_help_data->data[1].pg;
1374 } else {/* 1 is pauseable */
1375 cos_data->data[0].pri_join_mask =
1376 pg_help_data->data[1].pg_priority;
1377 pg[0] = pg_help_data->data[1].pg;
1378 cos_data->data[1].pri_join_mask =
1379 pg_help_data->data[0].pg_priority;
1380 pg[1] = pg_help_data->data[0].pg;
1383 /* If there are only pauseable priorities or
1384 * only non-pauseable, each PG goes to a queue.
1386 cos_data->data[0].pausable = cos_data->data[1].pausable =
1387 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1388 cos_data->data[0].pri_join_mask =
1389 pg_help_data->data[0].pg_priority;
1390 pg[0] = pg_help_data->data[0].pg;
1391 cos_data->data[1].pri_join_mask =
1392 pg_help_data->data[1].pg_priority;
1393 pg[1] = pg_help_data->data[1].pg;
1396 /* There can be only one strict pg */
1397 for (i = 0 ; i < ARRAY_SIZE(pg); i++) {
1398 if (pg[i] < DCBX_MAX_NUM_PG_BW_ENTRIES)
1399 cos_data->data[i].cos_bw =
1400 DCBX_PG_BW_GET(ets->pg_bw_tbl, pg[i]);
1402 cos_data->data[i].strict =
1403 BNX2X_DCBX_STRICT_COS_HIGHEST;
1407 static int bnx2x_dcbx_join_pgs(
1409 struct dcbx_ets_feature *ets,
1410 struct pg_help_data *pg_help_data,
1411 u8 required_num_of_pg)
1413 u8 entry_joined = pg_help_data->num_of_pg - 1;
1414 u8 entry_removed = entry_joined + 1;
1417 if (required_num_of_pg == 0 || ARRAY_SIZE(pg_help_data->data)
1418 <= pg_help_data->num_of_pg) {
1420 BNX2X_ERR("required_num_of_pg can't be zero\n");
1424 while (required_num_of_pg < pg_help_data->num_of_pg) {
1425 entry_joined = pg_help_data->num_of_pg - 2;
1426 entry_removed = entry_joined + 1;
1428 entry_removed %= ARRAY_SIZE(pg_help_data->data);
1430 pg_help_data->data[entry_joined].pg_priority |=
1431 pg_help_data->data[entry_removed].pg_priority;
1433 pg_help_data->data[entry_joined].num_of_dif_pri +=
1434 pg_help_data->data[entry_removed].num_of_dif_pri;
1436 if (pg_help_data->data[entry_joined].pg == DCBX_STRICT_PRI_PG ||
1437 pg_help_data->data[entry_removed].pg == DCBX_STRICT_PRI_PG)
1438 /* Entries joined strict priority rules */
1439 pg_help_data->data[entry_joined].pg =
1442 /* Entries can be joined join BW */
1443 pg_joined = DCBX_PG_BW_GET(ets->pg_bw_tbl,
1444 pg_help_data->data[entry_joined].pg) +
1445 DCBX_PG_BW_GET(ets->pg_bw_tbl,
1446 pg_help_data->data[entry_removed].pg);
1448 DCBX_PG_BW_SET(ets->pg_bw_tbl,
1449 pg_help_data->data[entry_joined].pg, pg_joined);
1451 /* Joined the entries */
1452 pg_help_data->num_of_pg--;
1458 static void bnx2x_dcbx_2cos_limit_cee_three_pg_to_cos_params(
1460 struct pg_help_data *pg_help_data,
1461 struct dcbx_ets_feature *ets,
1462 struct cos_help_data *cos_data,
1463 u32 *pg_pri_orginal_spread,
1471 bool b_found_strict = false;
1472 u8 num_of_pri = LLFC_DRIVER_TRAFFIC_TYPE_MAX;
1474 cos_data->data[0].pri_join_mask = cos_data->data[1].pri_join_mask = 0;
1475 /* If there are both pauseable and non-pauseable priorities,
1476 * the pauseable priorities go to the first queue and the
1477 * non-pauseable priorities go to the second queue.
1479 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask))
1480 bnx2x_dcbx_separate_pauseable_from_non(bp,
1481 cos_data, pg_pri_orginal_spread, ets);
1483 /* If two BW-limited PG-s were combined to one queue,
1484 * the BW is their sum.
1486 * If there are only pauseable priorities or only non-pauseable,
1487 * and there are both BW-limited and non-BW-limited PG-s,
1488 * the BW-limited PG/s go to one queue and the non-BW-limited
1489 * PG/s go to the second queue.
1491 * If there are only pauseable priorities or only non-pauseable
1492 * and all are BW limited, then two priorities go to the first
1493 * queue and one priority goes to the second queue.
1495 * We will join this two cases:
1496 * if one is BW limited it will go to the secoend queue
1497 * otherwise the last priority will get it
1500 cos_data->data[0].pausable = cos_data->data[1].pausable =
1501 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1503 for (i = 0 ; i < num_of_pri; i++) {
1504 pri_tested = 1 << bp->dcbx_port_params.
1505 app.traffic_type_priority[i];
1506 pg_entry = (u8)pg_pri_orginal_spread[bp->
1507 dcbx_port_params.app.traffic_type_priority[i]];
1509 if (pg_entry < DCBX_MAX_NUM_PG_BW_ENTRIES) {
1512 if (i == (num_of_pri-1) &&
1513 false == b_found_strict)
1514 /* last entry will be handled separately
1515 * If no priority is strict than last
1516 * enty goes to last queue.*/
1518 cos_data->data[entry].pri_join_mask |=
1520 bnx2x_dcbx_add_to_cos_bw(bp,
1521 &cos_data->data[entry],
1522 DCBX_PG_BW_GET(ets->pg_bw_tbl,
1525 b_found_strict = true;
1526 cos_data->data[1].pri_join_mask |= pri_tested;
1527 /* If we join a group and one is strict
1528 * than the bw rulls */
1529 cos_data->data[1].strict =
1530 BNX2X_DCBX_STRICT_COS_HIGHEST;
1537 static void bnx2x_dcbx_2cos_limit_cee_fill_cos_params(struct bnx2x *bp,
1538 struct pg_help_data *help_data,
1539 struct dcbx_ets_feature *ets,
1540 struct cos_help_data *cos_data,
1541 u32 *pg_pri_orginal_spread,
1546 /* default E2 settings */
1547 cos_data->num_of_cos = DCBX_COS_MAX_NUM_E2;
1549 switch (help_data->num_of_pg) {
1551 bnx2x_dcbx_2cos_limit_cee_single_pg_to_cos_params(
1559 bnx2x_dcbx_2cos_limit_cee_two_pg_to_cos_params(
1564 pg_pri_orginal_spread,
1570 bnx2x_dcbx_2cos_limit_cee_three_pg_to_cos_params(
1575 pg_pri_orginal_spread,
1580 BNX2X_ERR("Wrong pg_help_data.num_of_pg\n");
1581 bnx2x_dcbx_ets_disabled_entry_data(bp,
1582 cos_data, pri_join_mask);
1586 static int bnx2x_dcbx_spread_strict_pri(struct bnx2x *bp,
1587 struct cos_help_data *cos_data,
1589 u8 num_spread_of_entries,
1592 u8 strict_pri = BNX2X_DCBX_STRICT_COS_HIGHEST;
1593 u8 num_of_app_pri = MAX_PFC_PRIORITIES;
1596 while (num_spread_of_entries && num_of_app_pri > 0) {
1597 app_pri_bit = 1 << (num_of_app_pri - 1);
1598 if (app_pri_bit & strict_app_pris) {
1599 struct cos_entry_help_data *data = &cos_data->
1601 num_spread_of_entries--;
1602 if (num_spread_of_entries == 0) {
1603 /* last entry needed put all the entries left */
1604 data->cos_bw = DCBX_INVALID_COS_BW;
1605 data->strict = strict_pri;
1606 data->pri_join_mask = strict_app_pris;
1607 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1608 data->pri_join_mask);
1610 strict_app_pris &= ~app_pri_bit;
1612 data->cos_bw = DCBX_INVALID_COS_BW;
1613 data->strict = strict_pri;
1614 data->pri_join_mask = app_pri_bit;
1615 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1616 data->pri_join_mask);
1620 BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(strict_pri);
1627 if (num_spread_of_entries)
1633 static u8 bnx2x_dcbx_cee_fill_strict_pri(struct bnx2x *bp,
1634 struct cos_help_data *cos_data,
1636 u8 num_spread_of_entries,
1640 if (bnx2x_dcbx_spread_strict_pri(bp, cos_data, entry,
1641 num_spread_of_entries,
1643 struct cos_entry_help_data *data = &cos_data->
1646 data->cos_bw = DCBX_INVALID_COS_BW;
1647 data->strict = BNX2X_DCBX_STRICT_COS_HIGHEST;
1648 data->pri_join_mask = strict_app_pris;
1649 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1650 data->pri_join_mask);
1654 return num_spread_of_entries;
1657 static void bnx2x_dcbx_cee_fill_cos_params(struct bnx2x *bp,
1658 struct pg_help_data *help_data,
1659 struct dcbx_ets_feature *ets,
1660 struct cos_help_data *cos_data,
1664 u8 need_num_of_entries = 0;
1669 * if the number of requested PG-s in CEE is greater than 3
1670 * then the results are not determined since this is a violation
1673 if (help_data->num_of_pg > DCBX_COS_MAX_NUM_E3B0) {
1674 if (bnx2x_dcbx_join_pgs(bp, ets, help_data,
1675 DCBX_COS_MAX_NUM_E3B0)) {
1676 BNX2X_ERR("Unable to reduce the number of PGs -"
1677 "we will disables ETS\n");
1678 bnx2x_dcbx_ets_disabled_entry_data(bp, cos_data,
1684 for (i = 0 ; i < help_data->num_of_pg; i++) {
1685 struct pg_entry_help_data *pg = &help_data->data[i];
1686 if (pg->pg < DCBX_MAX_NUM_PG_BW_ENTRIES) {
1687 struct cos_entry_help_data *data = &cos_data->
1690 data->cos_bw = DCBX_PG_BW_GET(ets->pg_bw_tbl, pg->pg);
1691 data->strict = BNX2X_DCBX_STRICT_INVALID;
1692 data->pri_join_mask = pg->pg_priority;
1693 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1694 data->pri_join_mask);
1698 need_num_of_entries = min_t(u8,
1699 (u8)pg->num_of_dif_pri,
1700 (u8)DCBX_COS_MAX_NUM_E3B0 -
1701 help_data->num_of_pg + 1);
1703 * If there are still VOQ-s which have no associated PG,
1704 * then associate these VOQ-s to PG15. These PG-s will
1705 * be used for SP between priorities on PG15.
1707 entry += bnx2x_dcbx_cee_fill_strict_pri(bp, cos_data,
1708 entry, need_num_of_entries, pg->pg_priority);
1712 /* the entry will represent the number of COSes used */
1713 cos_data->num_of_cos = entry;
1715 static void bnx2x_dcbx_fill_cos_params(struct bnx2x *bp,
1716 struct pg_help_data *help_data,
1717 struct dcbx_ets_feature *ets,
1718 u32 *pg_pri_orginal_spread)
1720 struct cos_help_data cos_data;
1722 u32 pri_join_mask = 0;
1723 u8 num_of_dif_pri = 0;
1725 memset(&cos_data, 0, sizeof(cos_data));
1727 /* Validate the pg value */
1728 for (i = 0; i < help_data->num_of_pg ; i++) {
1729 if (DCBX_STRICT_PRIORITY != help_data->data[i].pg &&
1730 DCBX_MAX_NUM_PG_BW_ENTRIES <= help_data->data[i].pg)
1731 BNX2X_ERR("Invalid pg[%d] data %x\n", i,
1732 help_data->data[i].pg);
1733 pri_join_mask |= help_data->data[i].pg_priority;
1734 num_of_dif_pri += help_data->data[i].num_of_dif_pri;
1738 cos_data.num_of_cos = 1;
1739 for (i = 0; i < ARRAY_SIZE(cos_data.data); i++) {
1740 cos_data.data[i].pri_join_mask = 0;
1741 cos_data.data[i].pausable = false;
1742 cos_data.data[i].strict = BNX2X_DCBX_STRICT_INVALID;
1743 cos_data.data[i].cos_bw = DCBX_INVALID_COS_BW;
1746 if (CHIP_IS_E3B0(bp))
1747 bnx2x_dcbx_cee_fill_cos_params(bp, help_data, ets,
1748 &cos_data, pri_join_mask);
1749 else /* E2 + E3A0 */
1750 bnx2x_dcbx_2cos_limit_cee_fill_cos_params(bp,
1753 pg_pri_orginal_spread,
1757 for (i = 0; i < cos_data.num_of_cos ; i++) {
1758 struct bnx2x_dcbx_cos_params *p =
1759 &bp->dcbx_port_params.ets.cos_params[i];
1761 p->strict = cos_data.data[i].strict;
1762 p->bw_tbl = cos_data.data[i].cos_bw;
1763 p->pri_bitmask = cos_data.data[i].pri_join_mask;
1764 p->pauseable = cos_data.data[i].pausable;
1767 if (p->bw_tbl != DCBX_INVALID_COS_BW ||
1768 p->strict != BNX2X_DCBX_STRICT_INVALID) {
1769 if (p->pri_bitmask == 0)
1770 BNX2X_ERR("Invalid pri_bitmask for %d\n", i);
1772 if (CHIP_IS_E2(bp) || CHIP_IS_E3A0(bp)) {
1775 DCBX_PFC_PRI_GET_NON_PAUSE(bp,
1776 p->pri_bitmask) != 0)
1777 BNX2X_ERR("Inconsistent config for "
1778 "pausable COS %d\n", i);
1780 if (!p->pauseable &&
1781 DCBX_PFC_PRI_GET_PAUSE(bp,
1782 p->pri_bitmask) != 0)
1783 BNX2X_ERR("Inconsistent config for "
1784 "nonpausable COS %d\n", i);
1789 DP(NETIF_MSG_LINK, "COS %d PAUSABLE prijoinmask 0x%x\n",
1790 i, cos_data.data[i].pri_join_mask);
1792 DP(NETIF_MSG_LINK, "COS %d NONPAUSABLE prijoinmask "
1794 i, cos_data.data[i].pri_join_mask);
1797 bp->dcbx_port_params.ets.num_of_cos = cos_data.num_of_cos ;
1800 static void bnx2x_dcbx_get_ets_pri_pg_tbl(struct bnx2x *bp,
1801 u32 *set_configuration_ets_pg,
1806 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) {
1807 set_configuration_ets_pg[i] = DCBX_PRI_PG_GET(pri_pg_tbl, i);
1809 DP(NETIF_MSG_LINK, "set_configuration_ets_pg[%d] = 0x%x\n",
1810 i, set_configuration_ets_pg[i]);
1814 static void bnx2x_dcbx_fw_struct(struct bnx2x *bp,
1815 struct bnx2x_func_tx_start_params *pfc_fw_cfg)
1818 u8 cos = 0, pri = 0;
1819 struct priority_cos *tt2cos;
1820 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
1822 memset(pfc_fw_cfg, 0, sizeof(*pfc_fw_cfg));
1824 /* to disable DCB - the structure must be zeroed */
1825 if (bp->dcbx_error & DCBX_REMOTE_MIB_ERROR)
1829 tt2cos = pfc_fw_cfg->traffic_type_to_priority_cos;
1831 /* Fw version should be incremented each update */
1832 pfc_fw_cfg->dcb_version = ++bp->dcb_version;
1833 pfc_fw_cfg->dcb_enabled = 1;
1835 /* Fill priority parameters */
1836 for (pri = 0; pri < LLFC_DRIVER_TRAFFIC_TYPE_MAX; pri++) {
1837 tt2cos[pri].priority = ttp[pri];
1838 pri_bit = 1 << tt2cos[pri].priority;
1840 /* Fill COS parameters based on COS calculated to
1841 * make it more general for future use */
1842 for (cos = 0; cos < bp->dcbx_port_params.ets.num_of_cos; cos++)
1843 if (bp->dcbx_port_params.ets.cos_params[cos].
1844 pri_bitmask & pri_bit)
1845 tt2cos[pri].cos = cos;
1848 /* we never want the FW to add a 0 vlan tag */
1849 pfc_fw_cfg->dont_add_pri_0_en = 1;
1851 bnx2x_dcbx_print_cos_params(bp, pfc_fw_cfg);
1854 void bnx2x_dcbx_pmf_update(struct bnx2x *bp)
1856 /* if we need to syncronize DCBX result from prev PMF
1857 * read it from shmem and update bp and netdev accordingly
1859 if (SHMEM2_HAS(bp, drv_flags) &&
1860 GET_FLAGS(SHMEM2_RD(bp, drv_flags), DRV_FLAGS_DCB_CONFIGURED)) {
1861 /* Read neg results if dcbx is in the FW */
1862 if (bnx2x_dcbx_read_shmem_neg_results(bp))
1865 bnx2x_dump_dcbx_drv_param(bp, &bp->dcbx_local_feat,
1867 bnx2x_get_dcbx_drv_param(bp, &bp->dcbx_local_feat,
1871 * Add new app tlvs to dcbnl
1873 bnx2x_dcbnl_update_applist(bp, false);
1875 * Send a notification for the new negotiated parameters
1877 dcbnl_cee_notify(bp->dev, RTM_GETDCB, DCB_CMD_CEE_GET, 0, 0);
1880 * reconfigure the netdevice with the results of the new
1883 bnx2x_dcbx_update_tc_mapping(bp);
1891 #define BNX2X_DCBX_CAPS (DCB_CAP_DCBX_LLD_MANAGED | \
1892 DCB_CAP_DCBX_VER_CEE | DCB_CAP_DCBX_STATIC)
1894 static inline bool bnx2x_dcbnl_set_valid(struct bnx2x *bp)
1896 /* validate dcbnl call that may change HW state:
1897 * DCB is on and DCBX mode was SUCCESSFULLY set by the user.
1899 return bp->dcb_state && bp->dcbx_mode_uset;
1902 static u8 bnx2x_dcbnl_get_state(struct net_device *netdev)
1904 struct bnx2x *bp = netdev_priv(netdev);
1905 DP(NETIF_MSG_LINK, "state = %d\n", bp->dcb_state);
1906 return bp->dcb_state;
1909 static u8 bnx2x_dcbnl_set_state(struct net_device *netdev, u8 state)
1911 struct bnx2x *bp = netdev_priv(netdev);
1912 DP(NETIF_MSG_LINK, "state = %s\n", state ? "on" : "off");
1914 bnx2x_dcbx_set_state(bp, (state ? true : false), bp->dcbx_enabled);
1918 static void bnx2x_dcbnl_get_perm_hw_addr(struct net_device *netdev,
1921 struct bnx2x *bp = netdev_priv(netdev);
1922 DP(NETIF_MSG_LINK, "GET-PERM-ADDR\n");
1924 /* first the HW mac address */
1925 memcpy(perm_addr, netdev->dev_addr, netdev->addr_len);
1928 /* second SAN address */
1929 memcpy(perm_addr+netdev->addr_len, bp->fip_mac, netdev->addr_len);
1933 static void bnx2x_dcbnl_set_pg_tccfg_tx(struct net_device *netdev, int prio,
1934 u8 prio_type, u8 pgid, u8 bw_pct,
1937 struct bnx2x *bp = netdev_priv(netdev);
1939 DP(NETIF_MSG_LINK, "prio[%d] = %d\n", prio, pgid);
1940 if (!bnx2x_dcbnl_set_valid(bp) || prio >= DCBX_MAX_NUM_PRI_PG_ENTRIES)
1944 * bw_pct ingnored - band-width percentage devision between user
1945 * priorities within the same group is not
1946 * standard and hence not supported
1948 * prio_type igonred - priority levels within the same group are not
1949 * standard and hence are not supported. According
1950 * to the standard pgid 15 is dedicated to strict
1951 * prioirty traffic (on the port level).
1956 bp->dcbx_config_params.admin_configuration_ets_pg[prio] = pgid;
1957 bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
1960 static void bnx2x_dcbnl_set_pg_bwgcfg_tx(struct net_device *netdev,
1961 int pgid, u8 bw_pct)
1963 struct bnx2x *bp = netdev_priv(netdev);
1964 DP(NETIF_MSG_LINK, "pgid[%d] = %d\n", pgid, bw_pct);
1966 if (!bnx2x_dcbnl_set_valid(bp) || pgid >= DCBX_MAX_NUM_PG_BW_ENTRIES)
1969 bp->dcbx_config_params.admin_configuration_bw_precentage[pgid] = bw_pct;
1970 bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
1973 static void bnx2x_dcbnl_set_pg_tccfg_rx(struct net_device *netdev, int prio,
1974 u8 prio_type, u8 pgid, u8 bw_pct,
1977 struct bnx2x *bp = netdev_priv(netdev);
1978 DP(NETIF_MSG_LINK, "Nothing to set; No RX support\n");
1981 static void bnx2x_dcbnl_set_pg_bwgcfg_rx(struct net_device *netdev,
1982 int pgid, u8 bw_pct)
1984 struct bnx2x *bp = netdev_priv(netdev);
1985 DP(NETIF_MSG_LINK, "Nothing to set; No RX support\n");
1988 static void bnx2x_dcbnl_get_pg_tccfg_tx(struct net_device *netdev, int prio,
1989 u8 *prio_type, u8 *pgid, u8 *bw_pct,
1992 struct bnx2x *bp = netdev_priv(netdev);
1993 DP(NETIF_MSG_LINK, "prio = %d\n", prio);
1996 * bw_pct ingnored - band-width percentage devision between user
1997 * priorities within the same group is not
1998 * standard and hence not supported
2000 * prio_type igonred - priority levels within the same group are not
2001 * standard and hence are not supported. According
2002 * to the standard pgid 15 is dedicated to strict
2003 * prioirty traffic (on the port level).
2007 *up_map = *bw_pct = *prio_type = *pgid = 0;
2009 if (!bp->dcb_state || prio >= DCBX_MAX_NUM_PRI_PG_ENTRIES)
2012 *pgid = DCBX_PRI_PG_GET(bp->dcbx_local_feat.ets.pri_pg_tbl, prio);
2015 static void bnx2x_dcbnl_get_pg_bwgcfg_tx(struct net_device *netdev,
2016 int pgid, u8 *bw_pct)
2018 struct bnx2x *bp = netdev_priv(netdev);
2019 DP(NETIF_MSG_LINK, "pgid = %d\n", pgid);
2023 if (!bp->dcb_state || pgid >= DCBX_MAX_NUM_PG_BW_ENTRIES)
2026 *bw_pct = DCBX_PG_BW_GET(bp->dcbx_local_feat.ets.pg_bw_tbl, pgid);
2029 static void bnx2x_dcbnl_get_pg_tccfg_rx(struct net_device *netdev, int prio,
2030 u8 *prio_type, u8 *pgid, u8 *bw_pct,
2033 struct bnx2x *bp = netdev_priv(netdev);
2034 DP(NETIF_MSG_LINK, "Nothing to get; No RX support\n");
2036 *prio_type = *pgid = *bw_pct = *up_map = 0;
2039 static void bnx2x_dcbnl_get_pg_bwgcfg_rx(struct net_device *netdev,
2040 int pgid, u8 *bw_pct)
2042 struct bnx2x *bp = netdev_priv(netdev);
2043 DP(NETIF_MSG_LINK, "Nothing to get; No RX support\n");
2048 static void bnx2x_dcbnl_set_pfc_cfg(struct net_device *netdev, int prio,
2051 struct bnx2x *bp = netdev_priv(netdev);
2052 DP(NETIF_MSG_LINK, "prio[%d] = %d\n", prio, setting);
2054 if (!bnx2x_dcbnl_set_valid(bp) || prio >= MAX_PFC_PRIORITIES)
2057 bp->dcbx_config_params.admin_pfc_bitmap |= ((setting ? 1 : 0) << prio);
2060 bp->dcbx_config_params.admin_pfc_tx_enable = 1;
2063 static void bnx2x_dcbnl_get_pfc_cfg(struct net_device *netdev, int prio,
2066 struct bnx2x *bp = netdev_priv(netdev);
2067 DP(NETIF_MSG_LINK, "prio = %d\n", prio);
2071 if (!bp->dcb_state || prio >= MAX_PFC_PRIORITIES)
2074 *setting = (bp->dcbx_local_feat.pfc.pri_en_bitmap >> prio) & 0x1;
2077 static u8 bnx2x_dcbnl_set_all(struct net_device *netdev)
2079 struct bnx2x *bp = netdev_priv(netdev);
2082 DP(NETIF_MSG_LINK, "SET-ALL\n");
2084 if (!bnx2x_dcbnl_set_valid(bp))
2087 if (bp->recovery_state != BNX2X_RECOVERY_DONE) {
2088 netdev_err(bp->dev, "Handling parity error recovery. "
2089 "Try again later\n");
2092 if (netif_running(bp->dev)) {
2093 bnx2x_nic_unload(bp, UNLOAD_NORMAL);
2094 rc = bnx2x_nic_load(bp, LOAD_NORMAL);
2096 DP(NETIF_MSG_LINK, "set_dcbx_params done (%d)\n", rc);
2103 static u8 bnx2x_dcbnl_get_cap(struct net_device *netdev, int capid, u8 *cap)
2105 struct bnx2x *bp = netdev_priv(netdev);
2108 if (bp->dcb_state) {
2110 case DCB_CAP_ATTR_PG:
2113 case DCB_CAP_ATTR_PFC:
2116 case DCB_CAP_ATTR_UP2TC:
2119 case DCB_CAP_ATTR_PG_TCS:
2120 *cap = 0x80; /* 8 priorities for PGs */
2122 case DCB_CAP_ATTR_PFC_TCS:
2123 *cap = 0x80; /* 8 priorities for PFC */
2125 case DCB_CAP_ATTR_GSP:
2128 case DCB_CAP_ATTR_BCN:
2131 case DCB_CAP_ATTR_DCBX:
2132 *cap = BNX2X_DCBX_CAPS;
2141 DP(NETIF_MSG_LINK, "capid %d:%x\n", capid, *cap);
2145 static u8 bnx2x_dcbnl_get_numtcs(struct net_device *netdev, int tcid, u8 *num)
2147 struct bnx2x *bp = netdev_priv(netdev);
2150 DP(NETIF_MSG_LINK, "tcid %d\n", tcid);
2152 if (bp->dcb_state) {
2154 case DCB_NUMTCS_ATTR_PG:
2155 *num = CHIP_IS_E3B0(bp) ? DCBX_COS_MAX_NUM_E3B0 :
2156 DCBX_COS_MAX_NUM_E2;
2158 case DCB_NUMTCS_ATTR_PFC:
2159 *num = CHIP_IS_E3B0(bp) ? DCBX_COS_MAX_NUM_E3B0 :
2160 DCBX_COS_MAX_NUM_E2;
2172 static u8 bnx2x_dcbnl_set_numtcs(struct net_device *netdev, int tcid, u8 num)
2174 struct bnx2x *bp = netdev_priv(netdev);
2175 DP(NETIF_MSG_LINK, "num tcs = %d; Not supported\n", num);
2179 static u8 bnx2x_dcbnl_get_pfc_state(struct net_device *netdev)
2181 struct bnx2x *bp = netdev_priv(netdev);
2182 DP(NETIF_MSG_LINK, "state = %d\n", bp->dcbx_local_feat.pfc.enabled);
2187 return bp->dcbx_local_feat.pfc.enabled;
2190 static void bnx2x_dcbnl_set_pfc_state(struct net_device *netdev, u8 state)
2192 struct bnx2x *bp = netdev_priv(netdev);
2193 DP(NETIF_MSG_LINK, "state = %s\n", state ? "on" : "off");
2195 if (!bnx2x_dcbnl_set_valid(bp))
2198 bp->dcbx_config_params.admin_pfc_tx_enable =
2199 bp->dcbx_config_params.admin_pfc_enable = (state ? 1 : 0);
2202 static void bnx2x_admin_app_set_ent(
2203 struct bnx2x_admin_priority_app_table *app_ent,
2204 u8 idtype, u16 idval, u8 up)
2209 case DCB_APP_IDTYPE_ETHTYPE:
2210 app_ent->traffic_type = TRAFFIC_TYPE_ETH;
2212 case DCB_APP_IDTYPE_PORTNUM:
2213 app_ent->traffic_type = TRAFFIC_TYPE_PORT;
2216 break; /* never gets here */
2218 app_ent->app_id = idval;
2219 app_ent->priority = up;
2222 static bool bnx2x_admin_app_is_equal(
2223 struct bnx2x_admin_priority_app_table *app_ent,
2224 u8 idtype, u16 idval)
2226 if (!app_ent->valid)
2230 case DCB_APP_IDTYPE_ETHTYPE:
2231 if (app_ent->traffic_type != TRAFFIC_TYPE_ETH)
2234 case DCB_APP_IDTYPE_PORTNUM:
2235 if (app_ent->traffic_type != TRAFFIC_TYPE_PORT)
2241 if (app_ent->app_id != idval)
2247 static int bnx2x_set_admin_app_up(struct bnx2x *bp, u8 idtype, u16 idval, u8 up)
2251 /* iterate over the app entries looking for idtype and idval */
2252 for (i = 0, ff = -1; i < DCBX_CONFIG_MAX_APP_PROTOCOL; i++) {
2253 struct bnx2x_admin_priority_app_table *app_ent =
2254 &bp->dcbx_config_params.admin_priority_app_table[i];
2255 if (bnx2x_admin_app_is_equal(app_ent, idtype, idval))
2258 if (ff < 0 && !app_ent->valid)
2261 if (i < DCBX_CONFIG_MAX_APP_PROTOCOL)
2262 /* if found overwrite up */
2263 bp->dcbx_config_params.
2264 admin_priority_app_table[i].priority = up;
2266 /* not found use first-free */
2267 bnx2x_admin_app_set_ent(
2268 &bp->dcbx_config_params.admin_priority_app_table[ff],
2271 /* app table is full */
2274 /* up configured, if not 0 make sure feature is enabled */
2276 bp->dcbx_config_params.admin_application_priority_tx_enable = 1;
2281 static u8 bnx2x_dcbnl_set_app_up(struct net_device *netdev, u8 idtype,
2284 struct bnx2x *bp = netdev_priv(netdev);
2286 DP(NETIF_MSG_LINK, "app_type %d, app_id %x, prio bitmap %d\n",
2289 if (!bnx2x_dcbnl_set_valid(bp))
2294 case DCB_APP_IDTYPE_ETHTYPE:
2295 case DCB_APP_IDTYPE_PORTNUM:
2300 return bnx2x_set_admin_app_up(bp, idtype, idval, up);
2303 static u8 bnx2x_dcbnl_get_dcbx(struct net_device *netdev)
2305 struct bnx2x *bp = netdev_priv(netdev);
2308 state = DCB_CAP_DCBX_LLD_MANAGED | DCB_CAP_DCBX_VER_CEE;
2310 if (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_OFF)
2311 state |= DCB_CAP_DCBX_STATIC;
2316 static u8 bnx2x_dcbnl_set_dcbx(struct net_device *netdev, u8 state)
2318 struct bnx2x *bp = netdev_priv(netdev);
2319 DP(NETIF_MSG_LINK, "state = %02x\n", state);
2323 if ((state & BNX2X_DCBX_CAPS) != state) {
2324 BNX2X_ERR("Requested DCBX mode %x is beyond advertised "
2325 "capabilities\n", state);
2329 if (bp->dcb_state != BNX2X_DCB_STATE_ON) {
2330 BNX2X_ERR("DCB turned off, DCBX configuration is invalid\n");
2334 if (state & DCB_CAP_DCBX_STATIC)
2335 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_ON_NEG_OFF;
2337 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_ON_NEG_ON;
2339 bp->dcbx_mode_uset = true;
2343 static u8 bnx2x_dcbnl_get_featcfg(struct net_device *netdev, int featid,
2346 struct bnx2x *bp = netdev_priv(netdev);
2349 DP(NETIF_MSG_LINK, "featid %d\n", featid);
2351 if (bp->dcb_state) {
2354 case DCB_FEATCFG_ATTR_PG:
2355 if (bp->dcbx_local_feat.ets.enabled)
2356 *flags |= DCB_FEATCFG_ENABLE;
2357 if (bp->dcbx_error & DCBX_LOCAL_ETS_ERROR)
2358 *flags |= DCB_FEATCFG_ERROR;
2360 case DCB_FEATCFG_ATTR_PFC:
2361 if (bp->dcbx_local_feat.pfc.enabled)
2362 *flags |= DCB_FEATCFG_ENABLE;
2363 if (bp->dcbx_error & (DCBX_LOCAL_PFC_ERROR |
2364 DCBX_LOCAL_PFC_MISMATCH))
2365 *flags |= DCB_FEATCFG_ERROR;
2367 case DCB_FEATCFG_ATTR_APP:
2368 if (bp->dcbx_local_feat.app.enabled)
2369 *flags |= DCB_FEATCFG_ENABLE;
2370 if (bp->dcbx_error & (DCBX_LOCAL_APP_ERROR |
2371 DCBX_LOCAL_APP_MISMATCH))
2372 *flags |= DCB_FEATCFG_ERROR;
2384 static u8 bnx2x_dcbnl_set_featcfg(struct net_device *netdev, int featid,
2387 struct bnx2x *bp = netdev_priv(netdev);
2390 DP(NETIF_MSG_LINK, "featid = %d flags = %02x\n", featid, flags);
2392 /* ignore the 'advertise' flag */
2393 if (bnx2x_dcbnl_set_valid(bp)) {
2395 case DCB_FEATCFG_ATTR_PG:
2396 bp->dcbx_config_params.admin_ets_enable =
2397 flags & DCB_FEATCFG_ENABLE ? 1 : 0;
2398 bp->dcbx_config_params.admin_ets_willing =
2399 flags & DCB_FEATCFG_WILLING ? 1 : 0;
2401 case DCB_FEATCFG_ATTR_PFC:
2402 bp->dcbx_config_params.admin_pfc_enable =
2403 flags & DCB_FEATCFG_ENABLE ? 1 : 0;
2404 bp->dcbx_config_params.admin_pfc_willing =
2405 flags & DCB_FEATCFG_WILLING ? 1 : 0;
2407 case DCB_FEATCFG_ATTR_APP:
2408 /* ignore enable, always enabled */
2409 bp->dcbx_config_params.admin_app_priority_willing =
2410 flags & DCB_FEATCFG_WILLING ? 1 : 0;
2422 static int bnx2x_peer_appinfo(struct net_device *netdev,
2423 struct dcb_peer_app_info *info, u16* app_count)
2426 struct bnx2x *bp = netdev_priv(netdev);
2428 DP(NETIF_MSG_LINK, "APP-INFO\n");
2430 info->willing = (bp->dcbx_remote_flags & DCBX_APP_REM_WILLING) ?: 0;
2431 info->error = (bp->dcbx_remote_flags & DCBX_APP_RX_ERROR) ?: 0;
2434 for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++)
2435 if (bp->dcbx_remote_feat.app.app_pri_tbl[i].appBitfield &
2436 DCBX_APP_ENTRY_VALID)
2441 static int bnx2x_peer_apptable(struct net_device *netdev,
2442 struct dcb_app *table)
2445 struct bnx2x *bp = netdev_priv(netdev);
2447 DP(NETIF_MSG_LINK, "APP-TABLE\n");
2449 for (i = 0, j = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
2450 struct dcbx_app_priority_entry *ent =
2451 &bp->dcbx_remote_feat.app.app_pri_tbl[i];
2453 if (ent->appBitfield & DCBX_APP_ENTRY_VALID) {
2454 table[j].selector = bnx2x_dcbx_dcbnl_app_idtype(ent);
2455 table[j].priority = bnx2x_dcbx_dcbnl_app_up(ent);
2456 table[j++].protocol = ent->app_id;
2462 static int bnx2x_cee_peer_getpg(struct net_device *netdev, struct cee_pg *pg)
2465 struct bnx2x *bp = netdev_priv(netdev);
2467 pg->willing = (bp->dcbx_remote_flags & DCBX_ETS_REM_WILLING) ?: 0;
2469 for (i = 0; i < CEE_DCBX_MAX_PGS; i++) {
2471 DCBX_PG_BW_GET(bp->dcbx_remote_feat.ets.pg_bw_tbl, i);
2473 DCBX_PRI_PG_GET(bp->dcbx_remote_feat.ets.pri_pg_tbl, i);
2478 static int bnx2x_cee_peer_getpfc(struct net_device *netdev,
2479 struct cee_pfc *pfc)
2481 struct bnx2x *bp = netdev_priv(netdev);
2482 pfc->tcs_supported = bp->dcbx_remote_feat.pfc.pfc_caps;
2483 pfc->pfc_en = bp->dcbx_remote_feat.pfc.pri_en_bitmap;
2487 const struct dcbnl_rtnl_ops bnx2x_dcbnl_ops = {
2488 .getstate = bnx2x_dcbnl_get_state,
2489 .setstate = bnx2x_dcbnl_set_state,
2490 .getpermhwaddr = bnx2x_dcbnl_get_perm_hw_addr,
2491 .setpgtccfgtx = bnx2x_dcbnl_set_pg_tccfg_tx,
2492 .setpgbwgcfgtx = bnx2x_dcbnl_set_pg_bwgcfg_tx,
2493 .setpgtccfgrx = bnx2x_dcbnl_set_pg_tccfg_rx,
2494 .setpgbwgcfgrx = bnx2x_dcbnl_set_pg_bwgcfg_rx,
2495 .getpgtccfgtx = bnx2x_dcbnl_get_pg_tccfg_tx,
2496 .getpgbwgcfgtx = bnx2x_dcbnl_get_pg_bwgcfg_tx,
2497 .getpgtccfgrx = bnx2x_dcbnl_get_pg_tccfg_rx,
2498 .getpgbwgcfgrx = bnx2x_dcbnl_get_pg_bwgcfg_rx,
2499 .setpfccfg = bnx2x_dcbnl_set_pfc_cfg,
2500 .getpfccfg = bnx2x_dcbnl_get_pfc_cfg,
2501 .setall = bnx2x_dcbnl_set_all,
2502 .getcap = bnx2x_dcbnl_get_cap,
2503 .getnumtcs = bnx2x_dcbnl_get_numtcs,
2504 .setnumtcs = bnx2x_dcbnl_set_numtcs,
2505 .getpfcstate = bnx2x_dcbnl_get_pfc_state,
2506 .setpfcstate = bnx2x_dcbnl_set_pfc_state,
2507 .setapp = bnx2x_dcbnl_set_app_up,
2508 .getdcbx = bnx2x_dcbnl_get_dcbx,
2509 .setdcbx = bnx2x_dcbnl_set_dcbx,
2510 .getfeatcfg = bnx2x_dcbnl_get_featcfg,
2511 .setfeatcfg = bnx2x_dcbnl_set_featcfg,
2512 .peer_getappinfo = bnx2x_peer_appinfo,
2513 .peer_getapptable = bnx2x_peer_apptable,
2514 .cee_peer_getpg = bnx2x_cee_peer_getpg,
2515 .cee_peer_getpfc = bnx2x_cee_peer_getpfc,
2518 #endif /* BCM_DCBNL */